Why is Trump choosing this time to openly embrace Q?
My thoughts:
The plan regarding Q is to awaken the public to the realities of institutional corruption.
Although the operation began with subtle hints that Trump was coordinating with Q, as we move closer to the public exposure and prosecution of bad actors, Trump's involvement is being shown more overtly. This lends support to the messages found in Q posts, the research of anons, and signals to his base (and his enemies) that the storm is imminent.
The present trajectory suggests that at a future time, Trump will openly admit that he is the originator of Q.